2012, ISBN: 1231038454

[EAN: 9781231038451], Neubuch, [PU: Rarebooksclub.com, United States], Language: English Brand New Book ***** Print on Demand *****.This historic book may have numerous typos and missing … Mehr…

[EAN: 9781231038451], Neubuch, [PU: Rarebooksclub.com, United States], Language: English Brand New Book ***** Print on Demand *****.This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1907 Excerpt: . negative plates for certain forms of battery. The second liquid product of the destructive distillation of coal is the ammoniacal or gas liquor, which consists of water partly condensed from the hot gas, and partly added to wash the gas in the scrubbers. It contains as its principal constituents ammonia, partly combined with carbonic acid and sulphuretted hydrogen, forming compounds which are decomposed on boiling with evolution of ammonia gas, and partly combined with stronger acids to form compounds which require to be acted upon by a strong alkali before the ammonia contained in them can be liberated. The ammonia in the first class of compounds is technically spoken of as free, that present in the latter as fixed. The following analysis will give an idea of the relative quantities in which these compounds exist in the liquor: --Grams per Litre. Free ammonium sulphide. 3-03 carbonate. 39-16 Fixed ammonium chloride. 14-23, thiocyanate. 1-80, sulphate. 0-19, thiosulphate. 2-80, ferrocyanide. 0-41 From a scientific point of view, the term free is absolutely incorrect, and in using it the fact must be clearly borne in mind that in this case it merely stands for ammonia which can be liberated on simply boiling the liquor. The ammonia is derived from the nitrogen present in the coal combining with hydrogen during destructive distillation, the nitrogen becoming distributed amongst all three classes of products. The following table will give an approximate idea of the proportions which go to each--Per cent. Nitrogen as ammonia. 14-50 as cyanogen. 1-56, free in gas and combined in tar 35-26, remaining in coke. 48-68 100-00 It might be imagined from the enormous solubility of ammonia in water .<

2012, ISBN: 1231038454

[EAN: 9781231038451], Neubuch, [PU: Rarebooksclub.com, United States], Brand New Book ***** Print on Demand *****. This historic book may have numerous typos and missing text. Purchasers … Mehr…

[EAN: 9781231038451], Neubuch, [PU: Rarebooksclub.com, United States], Brand New Book ***** Print on Demand *****. This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1907 Excerpt: . negative plates for certain forms of battery. The second liquid product of the destructive distillation of coal is the ammoniacal or gas liquor, which consists of water partly condensed from the hot gas, and partly added to wash the gas in the scrubbers. It contains as its principal constituents ammonia, partly combined with carbonic acid and sulphuretted hydrogen, forming compounds which are decomposed on boiling with evolution of ammonia gas, and partly combined with stronger acids to form compounds which require to be acted upon by a strong alkali before the ammonia contained in them can be liberated. The ammonia in the first class of compounds is technically spoken of as free, that present in the latter as fixed. The following analysis will give an idea of the relative quantities in which these compounds exist in the liquor: --Grams per Litre. Free ammonium sulphide. 3-03 carbonate. 39-16 Fixed ammonium chloride. 14-23, thiocyanate. 1-80, sulphate. 0-19, thiosulphate. 2-80, ferrocyanide. 0-41 From a scientific point of view, the term free is absolutely incorrect, and in using it the fact must be clearly borne in mind that in this case it merely stands for ammonia which can be liberated on simply boiling the liquor. The ammonia is derived from the nitrogen present in the coal combining with hydrogen during destructive distillation, the nitrogen becoming distributed amongst all three classes of products. The following table will give an approximate idea of the proportions which go to each--Per cent. Nitrogen as ammonia. 14-50 as cyanogen. 1-56, free in gas and combined in tar 35-26, remaining in coke. 48-68 100-00 It might be imagined from the enormous solubility of ammonia in water .<